Polarization-independent, ultra-narrow band-pass and multi-wavelength tunable filter based on PS-PM-CFBG

2019 ◽  
Vol 443 ◽  
pp. 55-62
Author(s):  
Liangying Wu ◽  
Li Pei ◽  
Tigang Ning ◽  
Jingjing Zheng ◽  
Jing Li
Keyword(s):  
Narrow Band ◽  
Tunable Filter ◽  
Wavelength Tunable ◽  
Multi Wavelength ◽  
Band Pass ◽  
Polarization Independent

scholarly journals Design of programmable multi-wavelength tunable filter on lithium niobate

2019 ◽  
Vol 15 ◽  
pp. 102741
Author(s):  
Yuan Yao ◽  
Jiaqing Hou ◽  
Haifeng Liu ◽  
Ailing Zhang ◽  
Bo Liu ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Tunable Filter ◽  
Wavelength Tunable ◽  
Multi Wavelength

scholarly journals The OTELO survey

2019 ◽  
Vol 631 ◽  
pp. A9 ◽  
Author(s):  
Ángel Bongiovanni ◽  
Marina Ramón-Pérez ◽  
Ana María Pérez García ◽  
Jordi Cepa ◽  
Miguel Cerviño ◽  
...  
Keyword(s):  
Emission Line ◽  
Narrow Band ◽  
Broad Band ◽  
Cosmic Time ◽  
Far Infrared ◽  
Tunable Filter ◽  
Ancillary Data ◽  
Photometric Redshifts ◽  
Spectral Window ◽  
Multi Wavelength

Context. The evolution of galaxies through cosmic time is studied observationally by means of extragalactic surveys. The usefulness of these surveys is greatly improved by increasing the cosmological volume, in either depth or area, and by observing the same targets in different wavelength ranges. A multi-wavelength approach using different observational techniques can compensate for observational biases. Aims. The OTELO survey aims to provide the deepest narrow-band survey to date in terms of minimum detectable flux and emission line equivalent width in order to detect the faintest extragalactic emission line systems. In this way, OTELO data will complements other broad-band, narrow-band, and spectroscopic surveys. Methods. The red tunable filter of the OSIRIS instrument on the 10.4 m Gran Telescopio Canarias (GTC) is used to scan a spectral window centred at 9175 Å, which is free from strong sky emission lines, with a sampling interval of 6 Å and a bandwidth of 12 Å in the most deeply explored EGS region. Careful data reduction using improved techniques for sky ring subtraction, accurate astrometry, photometric calibration, and source extraction enables us to compile the OTELO catalogue. This catalogue is complemented with ancillary data ranging from deep X-ray to far-infrared, including high resolution HST images, which allow us to segregate the different types of targets, derive precise photometric redshifts, and obtain the morphological classification of the extragalactic objects detected. Results. The OTELO multi-wavelength catalogue contains 11 237 entries and is 50% complete at AB magnitude 26.38. Of these sources, 6600 have photometric redshifts with an uncertainty δ zphot better than 0.2 (1+zphot). A total of 4336 of these sources correspond to preliminary emission line candidates, which are complemented by 81 candidate stars and 483 sources that qualify as absorption line systems. The OTELO survey results will be released to the public on the second half of 2019.

scholarly journals Narrow-band wavelength tunable filter based on asymmetric double layer metallic grating

2015 ◽  
Vol 23 (11) ◽  
pp. 14434 ◽  
Author(s):  
Yuzhang Liang ◽  
Wei Peng ◽  
Mengdi Lu ◽  
Shuwen Chu
Keyword(s):  
Double Layer ◽  
Narrow Band ◽  
Tunable Filter ◽  
Metallic Grating ◽  
Wavelength Tunable

Design of multi-wavelength tunable filter based on Lithium Niobate

2018 ◽  
Vol 415 ◽  
pp. 13-17 ◽  
Author(s):  
Ailing Zhang ◽  
Yuan Yao ◽  
Yue Zhang ◽  
Hongyun Song
Keyword(s):  
Lithium Niobate ◽  
Tunable Filter ◽  
Wavelength Tunable ◽  
Multi Wavelength

Ultra-Narrow Band Tunable Filter

2005 ◽  
Author(s):  
Balam A. Willemsen
Keyword(s):  
Narrow Band ◽  
Tunable Filter

A Wavelength-Tunable Fiber-Coupled Narrow-Band Twin-Photon Source

2009 ◽  
Vol 26 (7) ◽  
pp. 074214 ◽  
Author(s):  
Huang Jian-Fa ◽  
Liu Bi-Heng ◽  
Fang Bin ◽  
Huang Yun-Feng ◽  
Guo Guang-Can
Keyword(s):  
Narrow Band ◽  
Wavelength Tunable ◽  
Photon Source

Superconducting narrow band pass filters for advanced multiplexers

2002 ◽  
Author(s):  
A. Fathy ◽  
D. Kalokitis ◽  
V. Pendrick ◽  
E. Balohoubek ◽  
A. Pique ◽  
...  
Keyword(s):  
Narrow Band ◽  
Band Pass
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